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2220111010220 = 225157707041723
BaseRepresentation
bin100000010011101000111…
…011011001100110101100
321212020111100112201002212
4200103220323121212230
5242333241404311340
64415523243505552
7316253264135645
oct40235073314654
97766440481085
102220111010220
117865a8872694
122ba3328282b8
1313148125829c
147964d8b26cc
153cb3bce9a65
hex204e8ed99ac

2220111010220 has 24 divisors (see below), whose sum is σ = 4691928880464. Its totient is φ = 882388069056.

The previous prime is 2220111010213. The next prime is 2220111010241. The reversal of 2220111010220 is 220101110222.

It is a junction number, because it is equal to n+sod(n) for n = 2220111010195 and 2220111010204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353517722 + ... + 353524001.

It is an arithmetic number, because the mean of its divisors is an integer number (195497036686).

Almost surely, 22220111010220 is an apocalyptic number.

2220111010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220111010220 is an abundant number, since it is smaller than the sum of its proper divisors (2471817870244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220111010220 is a wasteful number, since it uses less digits than its factorization.

2220111010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707041889 (or 707041887 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2220111010220 its reverse (220101110222), we get a palindrome (2440212120442).

The spelling of 2220111010220 in words is "two trillion, two hundred twenty billion, one hundred eleven million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 707041723 1414083446 2828166892 3535208615 7070417230 14140834460 111005550511 222011101022 444022202044 555027752555 1110055505110 2220111010220